visualize_trend

SERVERServiceNow MCP Server SOURCE@aartiq/servicenow-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity verified Pull the record →

This record as markdown: /tools/servicenow-mcp-server/visualize-trend.md

WHAT IT DOES

What visualize_trend does on ServiceNow MCP Server

AI agents call visualize_trend to retrieve information from ServiceNow MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why visualize_trend is rated Low

The tool only retrieves and aggregates record count data over time, producing chart and summary outputs. It performs no writes, executions, or destructive operations. The 'Read-only' declaration further confirms this classification.

From the tool's definition 'Build a real-time trend line of ServiceNow record counts over time' and explicitly states 'Read-only'

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs visualize_trend safely

PolicyLayer is an MCP gateway: it sits between your AI agents and ServiceNow MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For visualize_trend, this is the rule to start with:

visualize_trend Allowed

visualize_trend is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "visualize_trend": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect ServiceNow MCP Server, apply this rule, and every visualize_trend call is checked against it from then on.

FAQ

Questions about visualize_trend

What does the visualize_trend tool do? +

Build a real-time trend line of ServiceNow record counts over time (e.g. incidents opened per day). Returns chart-ready series, a Teams Adaptive Card line chart, a markdown table, and a summary. Read-only. It is categorised as a Read tool in the ServiceNow MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on visualize_trend? +

Register the ServiceNow MCP Server MCP server in PolicyLayer and add a rule for visualize_trend: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches ServiceNow MCP Server. Nothing to install.

What risk level is visualize_trend? +

visualize_trend is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit visualize_trend? +

Yes. Add a rate_limit block to the visualize_trend rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block visualize_trend completely? +

Set action: deny in the PolicyLayer policy for visualize_trend. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides visualize_trend? +

visualize_trend is provided by the ServiceNow MCP Server MCP server (@aartiq/servicenow-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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